After being trapped in debt and treated as property by her first husband, Sienna is offered a way out by Kael Blackwood, a cold, powerful tech billionaire with a dark reputation. The deal: become his wife in name only, appear at his side at public events, and give him an heir. In return, he will pay off her debts and protect her from her dangerous family. But once Sienna moves into Blackwood Tower, everything changes. The building awakens hidden powers inside her, revealing that she is connected to an ancient and powerful lineage. As her relationship with Kael turns from business to real passion, an unknown enemy begins plotting against her and the child she is carrying. Sienna must decide whether to escape with the money or stay and fight for the love and identity she never expected to find.